Passing struct to new functions

[likecodingloveproblems]

Ticket(s)

Closes #208.

Description

This PR revamps the constructor functions by passing structs into them and receiving pointers (mostly) back.

Related PRs

N/A

Development Checklist

• I have added a descriptive title to this PR.
• I have squashed related commits together.
• I have rebased my branch on top of the latest main branch.
• I have performed a self-review of my own code.
• I have commented on my code, particularly in hard-to-understand areas.
• I have added docstring(s) to my code.
• I have made corresponding changes to the documentation (docs).
• I have updated docs using make gen-docs command.
• I have added tests for my changes.
• I have signed all the commits.

Legal Checklist

• I have read the CONTRIBUTING document.
• I have read and understood the Code of Conduct.
• I have read and agreed to the Apache CLA (required).
• I have read and agreed to the LICENSE (required).

[github-actions]

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[mostafa]

Hey @likecodingloveproblems,

This is almost perfect! 👏 👌 Please address the comments, sign the commits and update the description. 🙏

[mostafa]

Hey @likecodingloveproblems,

Thanks for your contribution! 🎉 I updated the description, signed the commits on your behalf and merged the latest changes from the main branch, while resolving conflicts. This PR was a blocker to many other tasks and there were only minor issues, so I fixed the issues myself, so I can merge it sooner. You really did a great job, which I am really grateful for. 🙏